Come! Ms. Dunlap will give two talks at the CNPS Conservation Conference Feb. 1-3 in LA!

One regarding a database of 3,700 nectar plants (& how to collect images to benefit pollinators), and the other regarding
a prototypical key incorporating a novel plant identification system that produced an order of magnitude improvement.

Asclepias tuberosa

Family: Apocynaceae


Native to: Eastern United States, Southern United States


Type: perennial

Forms: clumping, erect

Max height: 3.3 feet

Max width: 2 feet






Attracts wildlife: adult butterfly, bee, hummingbird, specific butterfly species

Plant part consumed by birds: nectar

Exposure: sun

Propagates by: division, seed

flowers in fall

flowers in summer

Soil type: well drained

USDA Zones: zone 3 -40 f, zone 4 -30 f, zone 5 to -20 f, zone 6 to -10 f, zone 7 to 0 f, zone 8 to +10 f, zone 9 to +20 f

Temp. range: -40 to +30 °F

Water: moderate

Butterflies that feed on this plant

Abaeis nicippe

Agraulis vanillae

Amblyscirtes exoteria

Amblyscirtes fimbriata

Amblyscirtes phylace

Anartia fatima

Anatrytone logan

Ancyloxypha numitor

Atalopedes campestris

Battus philenor

Calephelis borealis

Callophrys gryneus

Callophrys johnsoni

Calycopis isobeon

Chlosyne gorgone

Chlosyne nycteis

Colias eurytheme

Colias philodice

Cupido comyntas

Cyanophrys miserabilis

Cymaenes trebius

Danaus eresimus

Danaus gilippus

Danaus plexippus

Dione moneta

Echinargus isola

Emesis ares

Emesis tenedia

Epargyreus clarus

Euphydryas chalcedona

Euphydryas phaeton

Euptoieta claudia

Eurema mexicana

Eurytides marcellus

Greta morgane

Hesperia viridis

Junonia coenia

Junonia evarete

Lycaena dione

Lycaena hyllus

Lycaena phlaeas

Nymphalis antiopa

Ochlodes sylvanoides

Papilio canadensis

Papilio cresphontes

Papilio eurymedon

Papilio glaucus

Papilio multicaudata

Papilio polyxenes

Papilio rutulus

Papilio troilus

Papilio xuthus

Papilio zelicaon

Phaeostrymon alcestis

Phyciodes batesii

Pieris rapae

Piruna aea

Plebejus acmon

Poanes massasoit

Poanes zabulon

Poladryas arachne

Polites carus

Polites peckius

Polites sabuleti

Polygonia comma

Pompeius verna

Pontia protodice

Satyrium acadica

Satyrium auretorum

Satyrium calanus

Satyrium californica

Satyrium caryaevorus

Satyrium edwardsii

Satyrium liparops

Satyrium polingi

Satyrium sylvinus

Satyrium titus

Satyrodes eurydice

Speyeria aphrodite

Speyeria atlantis

Speyeria cybele

Speyeria edwardsii

Speyeria idalia

Strymon melinus

Strymon serapio

Thorybes bathyllus

Vanessa atalanta

Vanessa cardui

  • Asclepias tuberosa  2
  • Asclepias tuberosa

Asclepias is an Apocynaceae known as MILKWEED or SILKWEED. There are 225 species of MILKWEED. Four perennials are cultivated that grow in Zones 3-10. Asclepias tuberosa grows to 3 1/2 feet high and prefers moderate watering in dry months.

Asclepias currassavica Silky Gold grows to 2 1/2 feet high. Asclepias currassavica Silky Gold Red grows to 3 1/2 feet high, incarnata grows to over 6 feet high, speciosa and tuberosa to 3 1/2 ft high. They prefer moderate irrigation during dry months. A. incarnata needs regular water.

Asclepias tuberosa attracts Callophrys gryneus Juniper Hairstreak

Butterflies attracted to this genus include:
Atalopedes campestris, Sachem
Callophrys gryneus, Juniper Hairstreak
Colias eurytheme, Orange Sulphur
Danaus gilippus, Queen
Danaus plexippus, Monarch
Epargyreus clarus, Silver-spotted Skipper
Euphyes vestris, Dun Skipper
Hylephila phyleus, Fiery Skipper
Lycaena phlaeas, American Copper
Papilio cresphontes, Giant Swallowtail
Papilio polyxenes, Black Swallowtail
Papilio troilus Spicebush Swallowtail
Pholisora catullus, Common Sootywing
Phyciodes tharos, Pearl Crescent
Polites carus, Carus Skipper
Polygonia interrogationis Question Mark
Satyrium auretorum, Gold-hunter's Hairstreak
Satyrium calanus, Banded Hairstreak
Satyrium californica, California Hairstreak
Satyrium sylvinus, Sylvan Hairstreak
Satyrium titus, Coral Hairstreak
Speyeria cybele, Great Spangled Fritillary
Strymon melinus, Gray Hairstreak
Thorybes pylades, Northern Cloudywing
Vanessa atalanta, Red Admiral
Vanessa cardui, Painted Lady
Vanessa virginiensis, American Lady
Zerene eurydice, California Dogface